table{
    border-style: none;
    border-collapse: collapse;
    border: none;
}
.jz{
    background-color: antiquewhite;
}
.jv{
    background-color: aqua;
}
.sj{
    background-color: rgb(24, 84, 64);
}
.zg{
    background-color: rgb(188, 99, 151);
}
.we{
    background-color: bisque;
}
.ls{
    background-color: blueviolet;
}
@media screen and (max-width:640px){
    th:first-child{
        display: none;
    }
    td[rowspan]{
        display: none;
    }
    td[class="jc"]{
        display: none;
    }
    
}